The present invention provides methods of treating a retinal disorder comprising administering an effective amount of a neurotrophic factor to a subject having the retinal disorder. The neurotrophic factors useful in the invention include mesencephalic astrocyte-derived neurotrophic factor (MANF) and conserved dopamine neurotrophic factor (CDNF). The present invention further comprises pharmaceutical compositions and kits containing MANF and CDNF.